kell22wolf
22.12.2020 •
Mathematics
PLEASE HELP! TRYING TO COMPLETE WITHIN 30 MINS
in an arithmetic sequence, a1 = 2x + 1, a2 = x + 11, and a3 = 4x + 5
how would i format the sequence? (or if it's easier, what is the r value?) i keep struggling with forming the proper one
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Ответ:
Step-by-step explanation:
In an AP, 2a2 = a1 + a3.
=> 2(x + 11) = (2x + 1) + (4x + 5)
=> 2x + 22 = 6x + 6
=> 4x = 16
=> x = 4.
Ответ:
he forumula for this is Total amount at the start(1+Percentage/100)^number of years
4500(1+13/100)^13 = 22041.04996
Therefore at the end of 13 years a person will have 22041.05 dolla